Patents by Inventor Katsutaka Togami

Katsutaka Togami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Foreign material interference detection apparatus for open/closing members
    Patent number: 6505127
    Abstract: A foreign material interference detection apparatus for an opening/closing member that reduces the calculation load for foreign material interference determination processing. A rotating speed detection sensor detects the rotating speed of a motor and provides its detection signal SP to a computer. The computer obtains a load determination rotating cycle t1 from the detection signal SP. Based on the load determination rotating cycle t1, the computer determines foreign material interference when it determines that the rotating speed is fluctuating due to a load that is the same as that produced when a foreign material is interfering with the opening/closing member and when the determination is made consecutively a predetermined number of times.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: January 7, 2003
    Assignee: ASMO Co., Ltd.
    Inventor: Katsutaka Togami